81511876

素因数分解:

$2^2\times {\mathrm{661}}^1\times {\mathrm{30829}}^1$

素因数の和:31494

約数の個数: 12

約数和(自身を含む): 142866220

約数和(自身を除く): 61354344

約数列:

[1, 2, 4, 661, 1322, 2644, 30829, 61658, 123316, 20377969, 40755938, 81511876]

約数ペア:

[(1, 81511876), (2, 40755938), (4, 20377969), (661, 123316), (1322, 61658), (2644, 30829)]